30 GHz bandwidth 850 nm VCSEL with sub-100 fJ/bit energy dissipation at 25-50 Gbit/s
Journal article, 2015

A high-speed and energy-efficient oxide-confined 850 nm vertical-cavity surface-emitting laser (VCSEL) for optical interconnects is presented. A record-high modulation bandwidth of 30 GHz is reached for a 3.5 mu m oxide aperture VCSEL, with 25 GHz bandwidth already at a bias current of 1.8 mA. The high bandwidth at low currents enables energy-efficient transmission with a dissipated heat energy in the VCSEL of <100 fJ/bit at 25, 40 and 50 Gbit/s.

laser cavity resonators

optical interconnections

optical modulation

surface emitting lasers

Author

Erik Haglund

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Petter Westbergh

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Johan Gustavsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Emanuel Haglund

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Anders Larsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

M. Geen

IQE (Europe) Ltd.

A. Joel

IQE (Europe) Ltd.

Electronics Letters

0013-5194 (ISSN) 1350-911X (eISSN)

Vol. 51 14 1096-1097

Subject Categories

Telecommunications

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1049/el.2015.0785

More information

Latest update

9/3/2018 2